Sensors/Data Acquisition

Wire Sensors Detect Dangerous Conditions in the Clouds

Sensors designed to keep aircraft safe are also helping in climate studies.

Spinoff is NASA's annual publication featuring successfully commercialized NASA technology. This commercialization has contributed to the development of products and services in the fields of health and medicine, consumer goods, transportation, public safety, computer technology, and environmental resources.

Posted in: Articles, Sensors, Sensors and actuators, Sensors and actuators, Weather and climate
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Method of Mapping Anomalies in Homogenous Material

This technology combines the SansEC circuit with a magnetic field reader to produce a spectroscopy readout.

This innovation builds off of NASA Langley Research Center’s SansEC sensing system. SansEC is an open-circuit, resonant sensor that needs no electrical connections (thus the name SansEC or “without electrical connection”). This technology combines the SansEC circuit with a magnetic field reader to allow for detection of magnetic or electric field changes to produce a spectroscopy readout.

Posted in: Briefs, Sensors, Sensors and actuators, Spectroscopy, Sensors and actuators, Spectroscopy, Materials properties, Test equipment and instrumentation, Test procedures
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Nick Krotkov, Atmospheric Scientist, Goddard Space Flight Center, Greenbelt, MD

Using data from NASA’s Earth Observing System Aura satellite, launched in 2004, a team led by Michigan Technological University created a global map of volcanic emissions. Scientist Nick Krotkov will use the information to refine climate models and better understand the human and environmental health risks of erupted gases like sulfur dioxide.

Posted in: Who's Who, Data Acquisition
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Creating the Future: A Better Way to Map Terrain

Mark Skoog, an aerospace engineer at NASA's Armstrong Flight Research Center, led the development of new software that stores terrain data in a more efficient and accurate way. The achievement, Skoog says, opens the prospect of anyone – yes, anyone – being able to fly.

Posted in: News, News, Aerospace, Imaging, Sensors
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AutoSurvey™ Software System

The U.S. Navy has developed a software system that optimizes the collection of data for hydrographic surveys. The autonomous survey system, called AutoSurvery, is an easy-to-implement, real-time adaptive software system for the collection of swath-type data that minimizes survey time while maintaining data quality and ensuring the desired coverage.

Posted in: Briefs, Sensors, Computer software / hardware, Computer software and hardware, Data acquisition and handling, Sensors and actuators, Computer software / hardware, Computer software and hardware, Data acquisition and handling, Sensors and actuators, Defense industry, Marine vehicles and equipment
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Authenticated Sensor Interface Device

Researchers at the Savannah River National Laboratory (SRNL) have developed a device to read data, encrypt the information, and distribute it electronically to multiple locations, providing a one-way data pathway that segregates each destination to prevent cross-party data manipulation. Previous “data diode” devices employ computer-based communication channels such as fiber-connected data cards between the sender and receiver. No integrated data authentication is performed, and data is sensitive to external attack and manipulation.

Posted in: Briefs, Sensors, Cyber security, Data acquisition and handling, Data exchange, Sensors and actuators, Cyber security, Data acquisition and handling, Data exchange, Sensors and actuators
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Photo-Acoustic Chemical Detector

This technology could be used for the detection of explosives and hazardous or toxic chemicals.

NASA's Langley Research Center has developed a photo-acoustic sensing-based laser vibrometer for the measurement of ambient chemical species. The technology allows for detection of sub-part-per-billion (ppb) levels of ambient trace gases and chemical species, with an order of magnitude more sensitivity than similar technologies. Among other applications, the technology could be used for the detection of explosives and hazardous or toxic chemicals.

Posted in: Briefs, Sensors, Instrumentation, Test & Measurement, Lasers, Lasers, Chemicals, Vibration, Vibration, Hazardous materials, Test equipment and instrumentation
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Ultra-High-Speed Fiber Optic Sensor Detects Structural Damage in Real Time

A research group including members from Tokyo Institute of Technology (Tokyo Tech) and Japan Society for the Promotion of Science has developed a real-time, fiber-optic, distributed sensing system for strain and temperature. The system requires light injection from only one end of the fiber, and can achieve a sampling rate of 100 kHz, an improvement of more than 5,000 times the conventional rate.

Posted in: Briefs, Sensors, Body structures, Fiber optics, Sensors and actuators, Fiber optics, Sensors and actuators, Diagnostics
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Piezoelectric Field Disturbance Sensing System and Method

This technology provides a lightweight, cost-effective solution for structural measurements.

The invention developed is a piezoelectric stimulus-response quantification-based gravimeter (PEG). The PEG takes a completely innovative approach towards utilization of the piezoelectric element — quantifying the gravitational effects on them. In this way, the piezoelectric element can: (1) generate an electric charge in response to mechanical deformation, and (2) be mechanically deformed by applying electric charges. This is known as the converse-piezoelectric effect. Piezoelectric elements can be used to precisely inject energy for exciting vibratory frequencies within the element and housing, enabling the element to be used for quantifying subsequently produced electrical output. The gravimeter is capable of measuring numerous other types of physical quantities such as thermal, magnetic, electrical, electromotive, electromagnetic,and electro-static fields, and provide static and structural information.

Posted in: Briefs, Sensors, Measurements, Vibration, Vibration, Test equipment and instrumentation
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Low-Cost RFID Torque and Tension Sensing Tag System

The system has applications in shipbuilding, aerospace engine construction, and other high-tech equipment.

This technology is a low-cost RFID-based torque and tension sensor for high-performance fasteners, such as bolts, that are used in sophisticated high-tech equipment and systems. It offers the ability to remotely and quickly verify that a given fastener is torqued properly, resulting in potential cost-savings over the life of the fastener and its host system. The technology is also extremely low-cost compared to current torque sensing wrenches and comparable technologies. This asset management tool offers performance and safety improvements as well. The motivation behind this invention was the catastrophic event in which a NOAA satellite sustained heavy damage after falling from a Turn-Over-Cart (TOC). The root cause was a configuration change in which 24 bolts had not been secured properly to the TOC. With this NASA invention, the quality assurance, tension monitoring, and configuration management associated with proper torqueing of fasteners will be largely automated, therefore providing a higher degree of safety.

Posted in: Briefs, Sensors, Remote sensing, Remote sensing, Radio-frequency identification, Fasteners
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